Improvement in field threshing-machine



PA TEN TED DE@ 31 1867 l WEZ/www.

@geiten gratta patrut @ffies A. W. TUCKER, OF WAXAHATCHIE, TEVXAS.

Letters .Patent No. 72,940,..dated .December 31, 1867.

IMPROVEMENI IN PIET-D THRESnFlIN(zi-MAGlllllj.v

TO ALL' WHOM IT MAY CONCERN: y y

, Be it known that I, A.y W. TUCKER, of WaXahatchie, in the county of Ellis, and State of Texas, have invented a new and improvediField Threshing-Machine and I do hereby declare that ,the following is a full, clear, andexactdescription thereof, which will enable others skilled-in the art to make and use the same, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure 1 represents a plan or top view ot' my improved threshing-machine.

Figure`2 is a vertical longitudinal sectional view ot' the same, the plane of section being indicated by the .line a: x, iig. 1. l

Figure 3 is a detail vertical cross-section of the same, the plane of seetionvbeing indicated by the line .ya fis- 2- Figure 4 is a plan or top`view of the threshing-cylinder.

Similar letters-of reference indicate corresponding parts.

This invention relates to a new threshing-machine, which is arranged upon wheels, so that-it can be drawn over the field, al'ter the reaper hasmoved over the-samavand so that it will take up all the straw lying in its track, and will thresh the same and discharge it, while it will retain the grain which has been freed frornthe straw.

The invention consists chiefly in the manner of arranging a tnreshing-cylinder over an endless apron, so

that the straw and grain, as they are discharged from the threshing-cylinder, fail upon thesame apron by'which they were brought to the vsaid threshing-cylinder. Thus a very simple arrangement of parts is made possible. The inventionconsists also in arranging a take-upl device at the front of the machine, by which the straw is thrown upon theapron. The said take-up device consists of a series of serrated anges, arranged spirally around a horizontal-revolving shaft.

A represents the axle of the threshing-machine, having its bearings in a frame, B, of Asuitable material, and of such shape and strength as to enable it to support and hold the other parts of this machine, as they will hereafter be described. In the upper rear part of this frame B is a horizontal roller, C, the same having its `bearings in two blocks, pp, which are slotted, or otherwise arranged so as to be adjustable on the frame, to keep the belt-a, which drives the roller C, at the required tension. To the lower front -part of the frame B are pivoted, by means of arod, b, two bars, c e, one on each side of the frame. These bars cform the bearings for a roller, D, as shown. E is an endless apron, of suitable construction, passing over the rollers C and D, as is clearly shown in fig. 2. Upon the axle A are mounted or hung two driving-wheels, F F, which, if hung, are connected with the axle by means of ratchet-wheels c Z and ypawls e, so that the axle will have to rotate with the same. The axle is arranged near the centre, butrather nearer to the rea-r end of the frame 13, and the front end of the same-is supported by a small tiro-wheel truck, G, which is connectedwith the frame B' by means of a bolt, f, the said bolt passing through a holeA in an arm, g, projecting. from the front of the frame B, and through the axle of the truekG, as shown in fig.' 2. The lower end of the apron beingv connected with the hinged bars c, vcan be raised by means of a. lever, H, so as to.be inoperative. The said lever is' pivoted to the -outside of the frame B, and has an arm connected with one of thc bars c, as indicated in Hg, 2. .I is a hori zntal shaft, having its bearings somewhat in rea-r of the aile A, in the frame B,'and connected with thesaure by means ofgear-wheels h h, as is shown in fig. 1. On this shaft I i's mounted a'pulley, over which passes the` vbelt a, which drives the roller O. The space around the upper part of the apron E is, at least to some extent,

cased in, and in this space is arranged a threshing-cylinder, J, being toothed, as wellas the wall of the case K, in its front and top, as shown in gs. 2 and 4. The cylinder J is driven by a belt, z', from the shaft I`. n front of the lower roller D, and so as to be on the ground when the apparatus is at Work, is arranged a horizontal shaft, L, driven by a belt, r, from the shaft I. This shaft L is provided with four,v or more orless, flanges, R R, which are arranged spirally around it, and which are' provided with serrated or toothed outer edges, as shown in iig. 1. This spirally-anged roller L will. takenp all the straw in its way, and that singly, as only one point of the roller touches the ground at a time. It receives motion by a belt, r, and from the shaft 1.,.01 otherwise.

The straw thus takenr upV is taken by the apron E and carried up. M is a small roller, resting upon the apron,

and tting with its end through slots in the case K. Under this roller the straw must pass, and as it comes out from under it, its ends will be bent up, asshown in iig. 2; and it will be taken by the threshing-cylinder and fed through between the teeth, so as to be thoroughly freed from all grain. The threshed grain and straw are from the threshing-cylinder reeonveyed to the apron E, and are by the same carried up towards the back portionof the machine. The sides of the low-er end of the apron, and of the take-up roller L, are protected by guards .N N, by which the machine is confined to the straw lying in its direct course. When the lower part of the apron is raised, by means of the lever H, the roller L is also raised off theground, and no more straw will beV taken up. The straw carried up by the apron E is thrown over the end ofthe machine, by means of a. revolving reel, O, which is driven by a belt, l, from the roller C. The grain falls over the upper end of the apron into the open mouth of an inclined box, P, having a perforated bottom, as shown. A blast of air is blown up in this box, by a suitable fan, R, by which the chaff' is thrown out, while the grain falls through the holes inthe bottom of the box P, upon a perforated board, S, to which a shaking motion is imparted by means of an eccentric, m, on the shaft I.` The grain falls then into a box, T, whence it can be discharged through a. suitable spout, n. ,The drivers seat, U, is arranged on the truck G, Within reach of the lever H, as shown.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. Arranging a threshing-cylinder above an endless apron, E, of a eld threshing-machine, in such a manner that the straw and grain emerging from the threshing-cylinder will fall uporrthe same apron by -which they were conveyed to the said cylinder, substantially as herein shown and described.

2. The apron E, threshing-cylinder J, and roller M, in combination with each other, all arranged-and operating substantially as and for the purpose herein shown and described.

3'. The spirally-langed serrated take-up roller L, Whenrxiade and operating, substantially as and for the purpose herein shown and described. g

4. The hinged bars c, in combination with the roller D, apron E, guards N, and lever H, all made and operating substantially as herein shown and described.

A. W. TUCKER..

Witnesses:

A. V. Bumsen, ALEX. F. Rorsnn'rs` 

